|
Measuring Range
|
Spherical ：-19.00D∽+16.75D, with minimum reading 0.25D or 0.12D (when +0.12D auxiliary lens or optional +/-0.12D lens is in use)
+26.75D to -29.00D (when optional +/-Lens is in use)
|
|
Cylinder ： 0D∽-6.00D with minimum reading 0.25D (when auxiliary lens is in use) 0D to 8.00D (when -2.00D auxiliary lens is in use)
|
|
Astigmatic Axis Scal：0°∽180° in 5° steps |
|
Rotary Prism |
0△∽20△ in 1△D step |
|
PD（Pupil Distance） |
48mm∽80mm in 1mm step (right and left astigmatic axis) |
|
Cross cylinder |
±0.25D, reversal type (synchronized with astigmatic axis)
+/-0.50D is option |
|
Forehead rest adjustment |
16mm backward and forward |
|
Convergence |
The optical axes of the lenses are aligned at a distance of 400mm from the vertexes of the corneas (2mm each for right and left inward),. Interpupillary distance enabling convergence=57mm to 80mm |
|
Corneal distance devise |
2mm for forward and 5mm backward from standard plance; with scal |
|
Effective field of view |
19 mm |
|
Dimensions |
338(L)×99(W)×292(H)mm·mm·mm |
|
Weight |
5kg |
